Alveolar gas is considered an ideal gas that it is located inside the alveolus and is composed mainly of ₂, ₂, H₂O and ₂ at 37°C and 760 mmHg. The total flow of ₂ into the lung is 250.3 ml/min having an effective perpendicular area total of 36 m² and a respiratory quotient (꜀ₒ₂/ₒ₂) of -0.8. The partial pressure inside the alveolus of ₂ and ₂ are P꜀ₒ₂ = 40 mmHg and Pₒ₂ = 100 mmHg. Calculate the molar flow of ₂ relative to the average molar velocity. Consider that 1 mol occupies 22.4 L at 37°C and at 760 mmHg and the vapor velocities of H₂O and ₂ are negligible in the alveolus. R = 8. 205 x 10⁻⁵ m³ atm/mol/K.